JP2010038466A - Unhulled rice drying method and dry unhulled rice manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cook brown rice after shelling processing of dry unhulled rice, soft to be easily eaten even by an ordinary rice cooker, and to improve utility value of brown rice powder obtained by milling the brown rice after shelling processing of dry unhulled rice. <P>SOLUTION: In an unhulled rice drying device 10, superheated steam S from a jetting section 24 is jetted to the unhulled rice from an upper side and a lower side in conveying a tray receiving the unhulled rice forward in a device body 12, to heat and dry the unhulled rice. Thus the brown rice after shelling processing of the dry unhulled rice, can be cooked soft to be easily eaten even by the ordinary rice cooker. Further as the dry unhulled rice is gelatinized in being dried by the superheated steam S, the gelatinized brown rice powder can be obtained by milling the brown rice after the shelling processing of the dry unhulled rice, and the utility value of the brown rice can be improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a koji drying method for drying koji and a method for producing a dried koji.

  As a rice drying method, there is a method in which superheated water vapor is jetted onto rice or water-absorbed rice to produce dry pregelatinized rice (for example, see Patent Document 1).

Here, it is preferable that brown rice can be eaten softly and easily even when cooked brown rice (without using a pressure cooker) after mashing the dried rice bran. Furthermore, it is preferable that the utility value of the brown rice flour obtained by milling the brown rice after the mashing of the dried rice bran can be increased.
JP 2001-120199 A

  In consideration of the above facts, the present invention makes it easy to eat brown rice after the rice bran treatment of the dried rice cake with a normal rice cooker, It is an object to obtain a method for drying koji and a method for producing dried koji that can enhance the utility value.

  In the soot drying method according to claim 1, the soot is dried using superheated steam.

  The method for producing a dried soot according to claim 2 produces a dried soot by drying the soot using superheated steam.

  In the soot drying method according to claim 1, the soot is dried using superheated steam. For this reason, even when brown rice after the rice bran treatment of dried rice bran is cooked with a normal rice cooker, brown rice can be eaten softly. Moreover, since the koji can be gelatinized by drying it using superheated steam, the brown rice after the kneading treatment of the dried koji can be milled into a pregelatinized brown rice powder, and the utility value of the brown rice powder can be increased.

  In the method for producing dried soot according to claim 2, the soot is produced by drying the soot using superheated steam. For this reason, even when brown rice after the rice bran treatment of dried rice bran is cooked with a normal rice cooker, brown rice can be eaten softly. Moreover, since the koji can be gelatinized by drying it using superheated steam, the brown rice after the kneading treatment of the dried koji can be milled into a pregelatinized brown rice powder, and the utility value of the brown rice powder can be increased.

  FIG. 1 shows a schematic cross-sectional view of a paddy drying apparatus 10 according to an embodiment configured by applying the paddy drying method and the paddy manufacturing method of the present invention as seen from the left side. 2, the main part of the cocoon drying apparatus 10 is shown in a perspective view as seen from the upper left. In addition, the front of the paddy drying apparatus 10 is indicated by an arrow FR, the left side of the paddy drying apparatus 10 is indicated by an arrow LH, and the upper part of the paddy drying apparatus 10 is indicated by an arrow UP.

  The cocoon drying apparatus 10 according to the present embodiment includes a device body 12 having a substantially rectangular parallelepiped box shape, and the device body 12 is installed on an installation surface (not shown).

  The apparatus main body 12 is provided with a conveyor 14 as a conveying means, and the conveyor 14 is provided with a pair of conveyor belts 16. The pair of conveyor belts 16 are arranged on the left and right, and the upper portions of the pair of conveyor belts 16 are disposed in the apparatus main body 12, and the conveyor 14 is driven so that the pair of conveyor belts 16 is shown in FIG. 2 and the upper part of the pair of conveyor belts 16 is moved forward in the apparatus main body 12.

  An introduction chamber 18 is provided on the rear side of the apparatus main body 12, and a lower portion of the introduction chamber 18 communicates with the inside of the apparatus main body 12 and the outside of the soot drying apparatus 10. Near the rear end of the upper portion of the pair of conveyor belts 16 is disposed at the lower end of the introduction chamber 18, and the rear ends of the upper portions of the pair of conveyor belts 16 are disposed on the rear side of the introduction chamber 18. .

  A discharge chamber 20 is provided on the front side of the apparatus main body 12, and a lower portion of the discharge chamber 20 communicates with the inside of the apparatus main body 12 and the outside of the soot drying apparatus 10. Near the front end of the upper part of the pair of conveyor belts 16 is disposed at the lower end of the discharge chamber 20, and the front end of the upper part of the pair of conveyor belts 16 is disposed on the front side of the discharge chamber 20.

  On the upper part of the pair of conveyor belts 16, the tray 22 as a storage member can be placed. By placing the tray 22 on the rear end of the upper part of the pair of conveyor belts 16, The tray 22 is conveyed to the front side by the pair of conveyor belts 16. As a result, the tray 22 is introduced into the apparatus main body 12 from the rear side through the introduction chamber 18, transported to the front side through the apparatus main body 12, and discharged from the apparatus main body 12 to the front side through the discharge chamber 20. The

  The tray 22 is configured to be able to store cocoon M (ginger after harvesting), and the bottom wall of the tray 22 is air permeable and cannot pass the cocoon M. Further, when the tub M is stored in the tray 22, the tub M is uniformly spread on the bottom wall of the tray 22.

  A predetermined number (four in the present embodiment) of injection units 24 are provided in the apparatus main body 12, and the predetermined number of injection units 24 are arranged along a pair of conveyor belts 16. The injection unit 24 includes an upper injection unit 24A and a lower injection unit 24B, and the upper injection unit 24A and the lower injection unit 24B are disposed on the upper side and the lower side of the pair of conveyor belts 16, respectively, The belts 16 are opposed to each other with the belt 16 in between.

  A superheated steam generator (not shown) is connected to the apparatus body 12, and the superheated steam generator generates superheated steam S (SHS) and injects it from the upper surface of the apparatus body 12 into the inside. The superheated steam S injected into the apparatus main body 12 is jetted from the upper jetting part 24A and the lower jetting part 24B to the pair of conveyor belts 16 side. As a result, the superheated steam S is sprayed onto the straw M in the tray 22 that is transported forward in the apparatus main body 12 by the pair of conveyor belts 16 so that the straw M is heated and dried. The superheated steam S after heating the soot M is exhausted upward from the apparatus main body 12.

  The superheated steam S is steam obtained by further heating saturated steam, and is steam that is superheated to a temperature equal to or higher than the saturation temperature (100 ° C.) of water at normal pressure. Further, when the soot M is heated by the superheated steam S, the soot M is heated not only by heat transfer by convection but also by heat transfer by radiation.

  Next, the operation of the present embodiment will be described.

  In the soot drying apparatus 10 having the above configuration, the upper portion of the pair of conveyor belts 16 is moved forward through the introduction chamber 18, the apparatus main body 12, and the discharge chamber 20 by driving the conveyor 14. Further, the superheated steam generator generates normal pressure superheated steam S and injects the superheated steam S into the apparatus main body 12, so that the superheated steam S is supplied from the upper injection part 24 </ b> A and the lower injection part 24 </ b> B to the pair of conveyor belts 16. It is injected to the side.

  In addition, the tray 22 in which the straw M (ginger after harvest) is accommodated (uniformly spread on the bottom wall) is placed on the rear ends of the upper portions of the pair of conveyor belts 16 so that the tray 22 Is conveyed to the front side by a pair of conveyor belts 16. For this reason, the tray 22 is introduced into the apparatus main body 12 from the rear side through the introduction chamber 18, transported through the apparatus main body 12 to the front side, and discharged from the apparatus main body 12 through the discharge chamber 20 to the front side. The Thereby, when the tray 22 is conveyed to the front side in the apparatus main body 12, the superheated steam S from the upper injection part 24A and the lower injection part 24B of the injection part 24 is applied to the bag M in the tray 22 from the upper side and the lower side. The spray M is heated and dried under normal pressure and in a substantially air shut-off state (low oxygen state).

  For example, the superheated steam S is set to 110 ° C. to 400 ° C., and the soot M in the tray 22 is heated for 10 seconds to 60 minutes (preferably 1 minute to 15 minutes). In particular, cocoon M (ginger) having a moisture content of 24% is heated to 130 ° C. by superheated steam S for 3 minutes to be dried to cocoon M having a moisture content of 15%. In addition, cocoon M (ginger) having a moisture content of 24% is heated by superheated steam S at 180 ° C. for 1 minute to be dried to cocoon M having a moisture content of 15%.

  By the way, the rice cake M (hereinafter referred to as “dried rice cake M”) dried by the rice cake drying apparatus 10 (superheated steam S) has many shell cracks, and if the rice cake processing is performed after the rice cake drying process, the number of crushed grains increases. End up.

  However, the dried rice bran M can be crushed normally and made into brown rice as usual.

  Here, since the dried rice bran M is dried by the superheated steam S as described above, when the brown rice after the dried rice bran M is crushed is cooked with a normal rice cooker (without using a pressure cooker). Compared to the case of rice cake dried with normal hot air, brown rice can be eaten softly. For this reason, it is possible to cook brown rice that is soft and easy to eat without using a pressure cooker.

  Moreover, it can be set as a foodstuff with high nutritional values, such as a mineral, compared with white rice flour by grind | pulverizing the brown rice after carrying out the rice bran processing of the dried rice bran M by a flour mill.

  Furthermore, the dried soot M is α-ized when being dried by the superheated steam S. For this reason, the brown rice after carrying out the rice bran processing of the dried rice bran M can be milled with a flour mill to obtain pregelatinized brown rice flour, and the utility value of the brown rice flour can be increased.

It is sectional drawing seen from the left which shows the outline of the basket drying apparatus which concerns on embodiment of this invention. It is the perspective view seen from the diagonally left upper side which shows the principal part of the basket drying apparatus which concerns on embodiment of this invention.

Explanation of symbols

10 籾 Dryer M 籾 S Superheated steam

Claims (2)

  A koji drying method for drying koji using superheated steam.   A method for producing dried soot by drying the soot using superheated steam.

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